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std::error_...::error_code(3) C++ Standard Libarystd::error_...::error_code(3) NAME std::error_code::error_code - std::error_code::error_code Synopsis error_code() noexcept; (1) (since C++11) error_code( int ec, const error_category& ecat ) noexcept; (2) (since C++11) template< class ErrorCodeEnum > (3) (since C++11) error_code( ErrorCodeEnum e ) noexcept; Constructs new error code. 1) Constructs error code with default value. Equivalent to er- ror_code(0, std::system_category()). 2) Constructs error code with ec as the platform-dependent error code and ecat as the corresponding error category. 3) Constructs error code from an error code enum e. Equivalent to make_error_code(e), where make_error_code is found by argument-de- pendent lookup. This overload participates in overload resolution only if std::is_error_code_enum<ErrorCodeEnum>::value is true. Parameters ec - platform dependent error code to construct with ecat - error category corresponding to ec e - error code enum to construct with Notes The ADL-found make_error_code is intended to be used in the original proposal N2422, and used by all known implementations. However, the standard re- quires that only std::make_error_code overloads are considered. This is LWG issue 3629. See also make_error_code(std::errc) constructs an std::errc error code (C++11) (function) make_error_code(std::io_errc) constructs an iostream error code (C++11) (function) make_error_code(std::future_errc) constructs a future error code (C++11) (function) http://cppreference.com 2022.07.31 std::error_...::error_code(3)
NAME | Synopsis | Parameters | Notes | See also
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